| FDK CORPORATION Patent applications |
| Patent application number | Title | Published |
| 20110109270 | INTER-MODULE VOLTAGE BALANCE CORRECTING CIRCUIT OF A POWER STORAGE SYSTEM - Provided is an inter-module voltage balance correcting circuit of a power storage system including a plurality of storage modules connected in series, each of the storage modules including a plurality of storage cells connected in series. The inter-module voltage balance correcting circuit includes a resistance voltage dividing circuit (R | 05-12-2011 |
| 20110084668 | ELECTRICITY STORAGE SYSTEM HAVING A PLURALITY OF SERIES-CONNECTED STORAGE CELLS - An electricity storage system includes a plurality of storage modules connected in series, each storage module including a single storage cell or a plurality of storage cells connected in series, an isolation transformer and a rectifying circuit that are associated with each of the storage modules, the isolation transformer having a primary winding and a secondary winding, and a voltage balancing circuit that generates an alternating current by switching a direct-current power source, the primary windings of the isolation transformers being all connected in parallel and connected to an output end of the voltage balancing circuit by a common wiring, the secondary windings of the isolation transformers being connected to the corresponding storage modules via the respective rectifying circuits, the alternating current being supplied to the primary winding of each of the isolation transformers. | 04-14-2011 |
| 20090302988 | Winding Component - To realize a structure that is substantially highly reliable, that solves a problem of a wire break accompanied by an application of an external force to a terminal and at the same time solves a problem of a wire break caused by heat effects during dip soldering, without causing a strength reduction of the terminal, cost increase, and wire thinning. | 12-10-2009 |
| 20090278496 | SERIES-CONNECTED RECHARGEABLE CELLS, SERIES-CONNECTED RECHARGEABLE CELL DEVICE, VOLTAGE-BALANCE CORRECTING CIRCUIT FOR SERIES-CONNECTED CELLS - [Object] There is provided series-connected rechargeable cells in which a large number of cells are series-connected and that makes it possible to improve performance on operations such as assembly or exchange and to perform speedy and smooth voltage-balance correcting for all cells. | 11-12-2009 |
| 20080218841 | Magneto-Optical Device and Manufacturing Method thereof - Magneto-optical crystals of each pixel of a magneto-optical device are magnetically and completely separated, and the entire surface thereof is flattened. | 09-11-2008 |